Answer:
See below, please.
Step-by-step explanation:

Percent means per one hundred so we can say that:
p/100≈(28)/(28+81+45+63+35) guessing with my old eyes :)
p/100≈28/252
p≈2800/252
p≈11.11%
So rounded to the nearest 5% you'd have:
p≈10%
Answer:
36 mpg
Step-by-step explanation:
the gas mileage= 1800/50 = 36 mpg
X = original price
x - 14.50 = 53 <== ur equation
x - 14.50 = 53
x = 53 + 14.50
x = 67.50...original price